Used on w/s:radar set, firefinder (an/tpq-36); forrestal class cv; shipboard material handling equipment (mhe); generator, 30kw, diesel, military standard family; shop equipment, general purpose repair, trlr, semi-mounted; nimitz class cvn; radio angrc171; generator, 15kw, diesel, military standard family; kidd class ddg; generator, 10kw, diesel, military standard family. 0.770" hole diameter